Evidence map›Paper›PMID 24588644›Full record

ArticleBiochemistry2014

Interactions of phosphatase and tensin homologue (PTEN) proteins with phosphatidylinositol phosphates: insights from molecular dynamics simulations of PTEN and voltage sensitive phosphatase.

Antreas C Kalli, Isabel Devaney, Mark S P Sansom

Open access · hybridAbstract read
In one paragraph

Article in Biochemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.0field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. The orchestrated signaling by PI3Kα and PTEN at the membrane interface.Computational and structural biotechnology journal · 2022
    Review
  6. Binding of CaStructure (London, England : 1993) · 2021
    Article
  7. Article
  8. Structural Mechanisms of PTEN Regulation.Cold Spring Harbor perspectives in medicine · 2020
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Voltage-dependent motion of the catalytic region of voltage-sensing phosphatase monitored by a fluorescent amino acid.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Antreas C KalliDepartment of Biochemistry, University of Oxford , South Parks Road, Oxford OX1 3QU, U.K.
Isabel Devaney
Mark S P Sansom
University of Oxford · GB

Funding

Biotechnology and Biological Sciences Research Council B19456Biotechnology and Biological Sciences Research Council BB/H000267/1Biotechnology and Biological Sciences Research Council BB/I019855/1Biotechnology and Biological Sciences Research Council BB/L002558/1Biotechnology and Biological Sciences Research Council BBS/B/16011Biotechnology and Biological Sciences Research Council BEP17032Wellcome Trust 092970
6 · The paper itself

Abstract

The phosphatase and tensin homologue (PTEN) and the Ciona intestinalis voltage sensitive phosphatase (Ci-VSP) are both phosphatidylinositol phosphate (PIP) phosphatases that contain a C2 domain. PTEN is a tumor suppressor protein that acts as a phosphatase on PIP3 in mammalian cell membranes. It contains two principal domains: a phosphatase domain (PD) and a C2 domain. Despite detailed structural and functional characterization, less is known about its mechanism of interaction with PIP-containing lipid bilayers. Ci-VSP consists of an N-terminal transmembrane voltage sensor domain and a C-terminal PTEN domain, which in turn contains a PD and a C2 domain. The nature of the interaction of the PTEN domain of Ci-VSP with membranes has not been well established. We have used multiscale molecular dynamics simulations to define the interaction mechanisms of PTEN and of the Ci-VSP PTEN domains with PIP-containing lipid bilayers. Our results suggest a novel mechanism of association of the PTEN with such bilayers, in which an initial electrostatics-driven encounter of the protein and bilayer is followed by reorientation of the protein to optimize its interactions with PIP molecules in the membrane. Although a PIP3 molecule binds close to the active site of PTEN, our simulations suggest a further conformational change of the protein may be required for catalytically productive binding to occur. Ci-VSP interacted with membranes in an orientation comparable to that of PTEN but bound directly to PIP-containing membranes without a subsequent reorientation step. Again, PIP3 bound close to the active site of the Ci-VSP PD, but not in a catalytically productive manner. Interactions of Ci-VSP with the bilayer induced clustering of PIP molecules around the protein.

Indexed as

Molecular Dynamics SimulationPhosphatidylinositol PhosphatesPhosphoric Monoester HydrolasesPTEN PhosphohydrolaseCrystallizationProtein BindingProtein Structure, SecondaryProtein Structure, TertiaryPhosphatidylinositol PhosphatesPhosphoric Monoester HydrolasesPTEN Phosphohydrolasevoltage-sensor-containing phosphatase, Ciona intestinalis

Identifiers

PMID24588644
PMCPMC4167384
OpenAlexW2066471600

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.